Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
OpenToonz - OpenToonz is an animation program that is a free software version of Toonz, the animation software...
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Synfig Studio - Just another WordPress site
Plivo - Plivo simplifies your customer engagement.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.